Dynamically select decoder using decoder_find().

1 files changed, 28 insertions, 0 deletions

diff --git a/decoder.c b/decoder.c
index 555757d..2f866c6 100644
--- a/decoder.c
+++ b/decoder.c
@@ -13,3 +13,31 @@ gssize decoder_decode(struct decoder *decoder, const guchar *inbuf,
 void decoder_close(struct decoder *decoder) {
 	decoder->decoder->close(decoder->data);
 }
+
+extern const struct decoder_plugin decoder_mpg123_decoder;
+
+static const struct decoder_plugin *decoder_plugins[] = {
+	&decoder_mpg123_decoder,
+	NULL,
+};
+
+const struct decoder_plugin *decoder_find(const gchar *filename) {
+	gchar *ext = g_strrstr(filename, ".");
+	if(ext == NULL) {
+		g_warning("decoder_find: no file extension found");
+		return NULL;
+	}
+	// exclude the dot
+	ext++;
+
+	for(int i = 0; decoder_plugins[i]; i++) {
+		const struct decoder_plugin *plugin = decoder_plugins[i];
+		for(int j = 0; plugin[i].extensions[j]; j++) {
+			if(g_strcmp0(plugin[i].extensions[j], ext) == 0) {
+				return plugin;
+			}
+		}
+	}
+
+	return NULL;
+}